What mould steel can make injection mold?

Answer:

Usually the die frame is 45 #, the core is usually P20, P20H, 718,718 H (H is the hardness of the steel) an H value indicates that the hardness is increased by 0.2.

8Cr2MnWMoVS (8Cr2S) the steel has the ability to cut, adjust the quality (40-42hrc) and its cutting performance is equivalent to the processing performance of T10A annealing (200HB). The comprehensive mechanics performance is good, good abrasion resistance, mirror polishing performance is good, grinding and polishing to Ra0.025 ц m, lithography erosion performance is good Applicable to the compression mold, injection mold, injection mold; It can also make cold stamping die, stage die, etc 2 cr13 is martensite stainless steel body, good toughness and cold deformation, hardness is a little higher than 1 cr13, and corrosion resistance is slightly below 1 cr13, cold drawing, cold punching technology is good, the tendency of hardening after welding is bigger, easy to crack. Used for plastic mold resistant to certain corrosivity. 4 cr13 belongs to martensite stainless steel, more than 2 cr13 has higher strength, hardness, good hardenability, corrosion resistance is better than 2 cr13 steel, welding performance is poor, is suitable for manufacturing requirements under the condition of a certain intensity and corrosion medium, large sections of plastic mold 1 cr18ni9ti belongs to the austenitic stainless steel, has a good ability of resistance to the corrosion of acidic medium and good oxidation resistance, used in the manufacture of plastic products containing corrosive additives of mold, but the strength of steel bottom, not suitable for manufacturing mould under pressure.

5 crnimnmovsca crsca (5) the using S - Ca compound free cutting steel pin and jet metallurgy technology, improve the morphology of sulphide, distribution and the anisotropy of steel, and can ensure the distribution of sulfide in the big cross section is relatively uniform. 5 crsca steel has high hardenability, high toughness, easy cutting, advance again hard (42 HRC) are still has good processability, has a good mirror polishing performance, surface roughness after polishing can reach Ra0.040 ц m, repair welding performance is good Suitable for plastic injection mould cavity complex, compression molding, require large deformation of the plastic molding die, etc 3 cr2mo the steel is from the American AISI P20 translating into the rigid plastic die steel, and has been incorporated into the national standard (GB1299-1985) can be in 29.5 under the condition of 35 HRC hardness supply, good machining performance, excellent polishing performance. It is widely used in various countries to apply a kind of plastic mold to the compression mold and injection mould 3 cr2nimnmo the steel is a new developed on the basis of P20 steel, the steel is with strong high toughness and good machining and polishing performance can be polished to 0.020 ц m (), can be in advance hard state (30-36 HRC) processing. Apply to large plastic mold or cavity complex, request mirror polishing molds

25 crni3moal limitation is our country to develop a bottom nickel steel, by 880 ℃ quenching and 680-700 ℃ high temperature tempering, the hardness in HRC 20-25, machining, can be in the 520-540 ℃ ageing, hardness can reach 38-42 HRC, aging by coherent precipitate and matrix of ordered intermetallic compound, leicester and strengthened. Suitable for plastic mold with high precision 10 crni3mncual (PMS) is a kind of advanced mirror Ni - Cu - Al precipitation hardening plastic die steel, the electric arc furnace and electroslag remelting steel of legal system, material purity, have higher polishing performance, surface roughness after polishing can reach Ra0.05 0.12 ц m, etching performance and have good decorative pattern design, good cold and hot processing performance and mechanical performance, hardness can reach 38-45 HRC after aging, deformation rate below 0.05%, is a transparent thermoplastic parts and all kinds of special steel brightness requirements of plastic molding die

Plastic mold with steel characteristics and USES The steel P20 belongs to low carbon steel, low strength, toughness, plasticity and weldability are good, it is mainly used for cavity is simple, small batch production of plastic mold, anti-indian method is used to manufacture the mold, then the carburizing and quenching and tempering treatment, can obtain high hardness and wear resistance, appearance of heart toughness good mould. 20 cr is one of the largest of several alloy structural steel production in our country, the application is very extensive, more than 20 steel has good hardenability, moderate strength and toughness, after carburizing treatment, has the very high hardness, wear resistance and corrosion resistance of the appropriate, as the usage of the plastic die steel with 20 steel 45 steel is China's current higher strength and better cutting workability, after proper heat treatment, can obtain a certain toughness, plastic, and wear resistance, convenient material source, generally after the conditioning, manufacturing plastic mold, is our country at present plastic mold used steel is one of the most widely steel grade 40 cr tensile strength and yield strength of the steel is higher than the corresponding carbon steel by 20%, and has good hardenability, good machinability, the steel manufacturing plastic mold and after carburizing and carbonitriding treatment, can improve the wear resistance and corrosion resistance